Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       Caelum veter. - region of the fixed stars
         (Constellation) Draco veter. - Dra
           (Star system) ν Draconis
             173210.6+551103 (Star) ν¹ Draconis
             173216.0+551023 (Star) ν² Draconis